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Small aircraft gets off course (V69) when one or both VOR receivers give pilot conflicting information.
| Attributes | |
| ACN | 353120 |
| Time | |
| Date | 199611 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pnt |
| State Reference | IL |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : v69 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi |
| Experience | flight time last 90 days : 8 flight time total : 1062 flight time type : 595 |
| ASRS Report | 353120 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | aircraft : equipment problem dissipated controller : issued new clearance flight crew : became reoriented |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After passing directly over pontiac VOR, I turned to about 30 degrees, allowing for wind drift which was strong from the southeast. #1 VOR set to 20 degrees from, and #2 VOR set to joliet VOR 22 degrees to. #1 VOR showed full deflection to the left and #2 showed a full deflection to the right. Which VOR was correct?
Original NASA ASRS Text
Title: SMA GETS OFF COURSE (V69) WHEN ONE OR BOTH VOR RECEIVERS GIVE PLT CONFLICTING INFO.
Narrative: AFTER PASSING DIRECTLY OVER PONTIAC VOR, I TURNED TO ABOUT 30 DEGS, ALLOWING FOR WIND DRIFT WHICH WAS STRONG FROM THE SE. #1 VOR SET TO 20 DEGS FROM, AND #2 VOR SET TO JOLIET VOR 22 DEGS TO. #1 VOR SHOWED FULL DEFLECTION TO THE L AND #2 SHOWED A FULL DEFLECTION TO THE R. WHICH VOR WAS CORRECT?
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.